diff --git a/pkgs/development/python-modules/plastexdepgraph/default.nix b/pkgs/development/python-modules/plastexdepgraph/default.nix
index b40cc41e0716..75b527513d5c 100644
--- a/pkgs/development/python-modules/plastexdepgraph/default.nix
+++ b/pkgs/development/python-modules/plastexdepgraph/default.nix
@@ -30,6 +30,8 @@ buildPythonPackage rec {
     plasTeX
   ];
 
+  pythonImportsCheck = [ "plastexdepgraph" ];
+
   meta = {
     description = "PlasTeX plugin allowing to build dependency graphs";
     homepage = "https://github.com/PatrickMassot/plastexdepgraph";